You operate a travel advisory website, and want to your users advice on airline timeliness. You select $3$ airlines, and monitor their delays at $5$ airports. You record average delay times for each airline at each airport. Then you run a $2$ way ANOVE and get the following partial results. IF you are testing for significant effecst at the $0\mathrm{.}05$ level of signficane, what would be the critical valeu fo F for assessing the affects of airlines